* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

*::before {
    box-sizing: border-box;
}

*::after {
    box-sizing: border-box;
}

a {
    text-decoration: none;
    color: black;
}

/* main.css */
body {
    background: #FFE600;
    min-height: 100vh;
}

button {
    position: fixed;
    right: 0;
    top: 0;
    z-index: 10;
    display: flex;
    flex-direction: column;
    margin-top: 10px;
    margin-right: 10px;
    margin-bottom: 10px;
    padding: 4px 8px;
}

.skin {
    position: relative;
}

.nose {
    border: 14px solid transparent;
    width: 10px;
    border-radius: 10px;
    border-top-color: black;
    position: absolute;
    left: 50%;
    top: 140px;
    margin-left: -14px;
    z-index: 5;
}

@keyframes wave {
    0% {
        transform: rotate(0deg);
    }

    33% {
        transform: rotate(4deg);
    }

    66% {
        transform: rotate(-4deg);
    }

    100% {
        transform: rotate(0deg);
    }
}

.nose:hover {
    transform-origin: center bottom;
    animation: wave 150ms infinite linear;
}

.eye {
    position: absolute;
    border: 2px solid black;
    width: 64px;
    height: 64px;
    left: 50%;
    top: 100px;
    margin-left: -32px;
    background: #2e2e2e;
    border-radius: 50%;
}

.eye::before {
    content: '';
    display: block;
    border: 1px solid #000;
    width: 30px;
    height: 30px;
    background: #fff;
    border-radius: 50%;
    position: relative;
    top: 3px;
    left: 8px;
}

.eye.left {
    transform: translateX(-100px);
}

.eye.right {
    transform: translateX(100px);
}

.mouth {
    width: 200px;
    height: 200px;
    position: absolute;
    left: 50%;
    top: 170px;
    margin-left: -100px;
}

.mouth .up {
    position: relative;
    top: -20px;
    z-index: 1;
}

.mouth .up .lip {
    border: 3px solid black;
    height: 30px;
    width: 100px;
    border-top-color: transparent;
    background-color: #FFE600;
    position: absolute;
    left: 50%;
    margin-left: -50px;
}

.mouth .up .lip.left {
    border-radius: 0 0 0 50px;
    transform: rotate(-20deg) translateX(-55px);
}

.mouth .up .lip.right {
    border-radius: 0 0 50px 0;
    transform: rotate(20deg) translateX(55px);
}


.mouth .up .lip::before {
    content: '';
    display: block;
    width: 7px;
    height: 30px;
    position: absolute;
    bottom: 0;
    background: #FFE600;
}


.mouth .up .lip.left::before {
    right: -6px;
}

.mouth .up .lip.right::before {
    left: -6px;
}

.mouth .down {
    height: 186px;
    position: absolute;
    top: 4px;
    width: 100%;
    overflow: hidden;
}

.mouth .down .yuan1 {
    border: 3px solid black;
    width: 150px;
    height: 1000px;
    position: absolute;
    bottom: 0;
    left: 50%;
    margin-left: -75px;
    border-radius: 75px/300px;
    background-color: #9B000A;
    overflow: hidden;
}

.mouth .down .yuan1 .yuan2 {
    width: 200px;
    height: 300px;
    position: absolute;
    background-color: #FF485F;
    bottom: -155px;
    left: 50%;
    margin-left: -100px;
    border-radius: 100px;
}

.face {
    border: 3px solid black;
    position: absolute;
    left: 50%;
    width: 88px;
    height: 88px;
    top: 200px;
    margin-left: -44px;
    z-index: 2;
}

.face.left {
    transform: translateX(-180px);
    background: #FF0000;
    border-radius: 50%;
}

.face.right {
    transform: translateX(180px);
    background: #FF0000;
    border-radius: 50%;
}